Why Can Histidine NOT Act as a Base in the Lysosome

question 50

Multiple Choice

Why can histidine NOT act as a base in the lysosome (an organelle where the pH is close to 4.5) ?

• A)Histidine has a positive charge at pH 4.5.
• B)Histidine has a side chain pK close to 6.
• C)Histidine would be protonated at pH 4.5.
• D)All of the above are correct.
• E)None of the above is correct.

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Foreign Bond

A bond denominated in the currency of the country in which it is sold, but issued by a foreign borrower.

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Foreign Firm

A company that is based in one country while conducting business operations in one or more other countries.